The Willamette Floodplain consists of 713 acres (289 ha) of natural grassland, near the Willamette River, that was made a National Natural Landmark in...

pollution (especially on the river's lower reaches). Part of the Willamette Floodplain was established as a National Natural Landmark in 1987, and the...

Willamette Valley flood of 1996. Part of its floodplain is a National Natural Landmark called the Willamette Floodplain. Historically, the Willamette...

Slightly larger than the Willamette Valley for which it is named, the ecoregion contains fluvial terraces and floodplains of the Willamette River system, scattered...

Day Fossil Beds The Island Mount Howard-East Peak Newberry Crater Willamette Floodplain Zumwalt Prairie List of National Historic Landmarks in Oregon Hale...

In addition to pollution, the floodplain of the Willamette River has been degraded to a significant extent. Willamette Riverkeeper is the only non-profit...

Willa Cather Memorial Prairie Nebraska Willa Cather Foundation Willamette Floodplain Oregon U.S. Fish and Wildlife Service Wind Cave National Park South...

Johnson Creek is a 25-mile (40 km) tributary of the Willamette River in the Portland metropolitan area of the U.S. state of Oregon. Part of the drainage...

Ashkenas, L.; Jett, S.; Wildman, R. (2002). Willamette River Basin Planning Atlas – Flood Inundations/FEMA Floodplains (PDF) (2nd ed.). Corvallis, Oregon: Oregon...

from the Cascade foothills, the McKenzie enters a broad floodplain. It joins the Willamette River from the east 5 miles (8 km) north of Eugene. The McKenzie...